FIRST FORUM POST SO PLEASE BEAR WITH ME HERE GUYS......
First a disclaimer, this is not for the faint of heart and you can cause a fair few issues if you are not confident in making modifications to your hardware, I cannot be held responsible if you cause damage to your equipment following this guide....
TOOLS/APPS required:
SoftMCCS (Entech)
http://www.entechtaiwan.com/lib/softmccs.shtm
Phoenix EDID designer
http://www.softsea.com/review/Phoenix-EDID-Designer.html
MonInfo
http://www.entechtaiwan.com/util/moninfo.shtm
Ok, on with the guide:
Guys much has been said about the sync polarity issue with Acer screens and running NV Surround at a resolution of 5040x1050, I have resolved this using research and some advice on another forum.
1. Get this tool (softMCCS from entech). Run it and extract the info for a screen
(I used one of the VGA screens and I have two VGA and one DVI/VGA)
If it reports (written in green font) that DDC/CI is Supported, your monitor's EDID can be dumped.
2. From the softMCCS File menu, choose Save as Raylar EDID file (*.dat). This is the base for your new monitor inf.
3. Open the saved EDID file in Phoenix EDID Designer. File->Uncheck Read only.
I carried out the following, using one of the standard VGA montor EDID's extracted using the tool above I launched Phoenix TWICE. I opened the original EDID from the monitor in one instance of the application and selected to create a new one in the other (with me so far?)
Copy in all of the original monitor information from the original into the NEW EDID you are creating....(ALL SECTIONS AND BE METICULOUS!) then save with whatever name you want
4. Open moninfo. File->Open...your newly created EDID. File-> Create INF.
Apply the new .inf file to All monitors in Device manager and reboot.
Following this I have three ACER P223W (two analogue only inputs and the combi DVI & VGA screen running at identical settings and missing resolutions previously unavailable are now active and NV Surround kicking in faultlessly with the previously missing resolutions now available....
Hopefully this will help someone as it took ages to find this solution (even the arses at ACER wouldn't help)